792 PLANT LIFE OF ALABAMA. 



Alleghenian and Carolinian areas. Ontario and southern New England, west to 

 Minnesota; Ohio Valley to Missouri, Kansas, and Arkansas, and south along the 

 mountains to South Carolina. 



ALABAMA: Mountain region. Rich wooded hills. Dekalb County, Meutone, 1.800 

 feet altitude. Madison County, Montesano, 1,500 feet altitude. Clay County, rocky 

 banks Talladega Creek, 1,000 feet altitude. Flowers yellowish white: May. Not 

 frequent. 



Type locality : " Hab. in Canada. Kalm." 



Herb. Geol. Surv. Herb. Mohr. 



Polymnia canadensis radiata Gray, Syn. Fl. X. A. 1, pt, 2 : 238. 1884. 



Carolinian area. Illinois, Arkansas, and Kansas. 



ALABAMA: Mountain region. Madison County, Hank of Montesano. on limestone 

 rocks. Clay County. Flowers sordid yellow; not frequent. 



Type locality: "Extends to Hot Springs, Arkansas, F. I.. Harrct/." 



Herb. Geol. Snrv. Herb. Mohr. 



Polymnia uvedalia L. Sp. PL ed. 2, 2 : 1303. 1763. BEA u FOOT. 



Ell. Sk. 2:471. Gray, Man. ed. 6, 270. Chap. Fl. 219. Gray, Syn. Fl X.A.I, pt. 

 2 : 238. Coulter, Contr. Nat. Herb. 2 : 204. 



Carolinian and Louisianian areas. Western New York, Pennsylvania, Avest to 

 Missouri and Arkansas, south to Georgia and Florida. 



ALABAMA :" Tennessee Valley to Coast plain. Shady borders of woods, copses, in 

 rich soil. Lauderdale County, Florence (M. C. Wilson}. Tuscaloosa, Montgomery, 

 Clarke, Baldwin, and Mobile counties. Flowers yellow; April, May. 



Economic uses: The root, called "bear foot," is used in domestic medicine 



Type locality : " Hab. in Virginia." 



Herb. Geol. Surv. Herb. Mohr. 



SILPHIUM L. Sp. PL 2 :919. 1753. 



About 12 or 13 species, perennial herbs. Temperate Eastern North America. 

 Silphium laciniatum L. Sp. PL 2 :919. 1753. COMPASS PLANT. 



Silphium gummiferum Ell. Sk. 2 :460. 1821-24. 



Ell. Sk. I.e. Gray, Man. ed. 6,270. Chap. Fl. 220. Gray, Syn. Fl. N. A. 1. pt. 2: 242. 

 Coulter, Contr. Nat. Herb. 2 : 205. 



Alleghenian to Louisiauian area. Dakota, Minnesota, Ohio to Missouri, Arkansas, 

 and Colorado; south from Tennessee to Georgia, west to Texas. 



ALABAMA: Prairie region to Lower division of Coast Pine belt. Montgomery 

 County, prairies on Pintlalla Creek. Monroe County, Claiborne. Flowers July. 

 August; not rare. 



Type locality : " Hab. in America septentrionali, Mississippi. Collinson.' 1 



Herb. Geol. Surv. Herb. Mohr. 



Silphium terebinthinaceum Jacq. Hort. Viudeb. 1 : t. 43. 1770. PKAIKIE 1 ><CK. 



Ell.Sk. 2:463. Gray, Man. ed. 6, 270. Chap. Fl. 220. Gray, Syn. Fl. N. A. 1. pt. 

 2 : 242. 



Allegheuian and Carolinian areas. Ohio, Michigan, west to Dakota, Nebraska, 

 south to Arkansas, and from Kentucky along the mountains to Georgia. 



ALABAMA : Lower hills. Grassy openings, borders of fields. Calhoun County, 

 Weaver (E. A. Smith). August; local and rare. 



Type locality unknown ("Patriam ignore"). 



Silphium compositum Miclix. Fl. Bor. Am. 2 : 145. 1803. SOUTHERN ROSINWKED. 



Ell. Sk. 2 : 462. Chap. Fl. 220; ed.3,241. Gray, Syn. Fl. N. A. 1, pt. 2:241. 



Carolinian and Louisianian areas. X^orth Carolina, along the mountains to 

 Georgia. 



ALABAMA: Mountain region to Central Pine belt. Dry gravelly or rocky ridges. 

 Cullman County. Tuscaloosa County, 450 feet altitude. Clay County. 2,000 feet 

 altitude, barren pine ridges. Talladega, Tallapoosa, and Chilton counties. Flowers 

 July, August; frequent; most abundant throughout the arid siliceous pine-clad 

 ridges of the Metamorphic region. 



Varies greatly in form and size of the leaves, from ovate pinuatisected (S. compos- 

 ition var. michaujcii Torr. & Gr.) to rotund; or uniform, cordate, more or less lobed 

 (S. compositum var. reniformc Torr. & Gr.), and broadly ovate subcordate unequally 

 and obtusely toothed (S. compositum var. ovalifoHnm Torr. & Gr.). 



Type locality : " Hab. in sylvis maritimis, a Carolina ad Floridam." 



Herb. Geol. Surv. Herb. Mohr. 



